/*添加背景图片*/
.background {
    width: 100%;
    height: 100%;
    background:url(jekki.png)100% 100% no-repeat;
    background-size: 100% 100%;}

.background {
    width: 100%;
    height: 100%;
    background:url(love.png)100% 100% no-repeat;
    background-size: 100% 100%;}